# Race Planner (raceplanner.online)
> Free Korean-first race-day planning tools: trail/ultra GPX pacing+fueling, marathon pace, HYROX predictor.

## Tools
- [Trail GPX Race Plan](https://raceplanner.online/gpx/): upload GPX -> hill/heat-adjusted pacing + fueling plan. Params: goal, temp, level, race
- [Marathon Pace](https://raceplanner.online/pace/): pace calculator and Riegel predictor. Params: distance, time
- [HYROX Calculator](https://raceplanner.online/)

## Docs
- [AI integration guide](https://raceplanner.online/ai/)
- [URL parameters](https://raceplanner.online/api-docs/)